Fixing line endings consistency in the whole repository and making sure everything is formatted

[jimon]

Unity by convention follows LF-everywhere approach, and our tooling, for example the formatter, is inclined to reformat into LF if line endings are not consistent.

This PR attempts to achieve:

• Asks git to store everything in LF.
• Asks git to checkout VS/Windows-specific files as CRLF.
• Provides a .repoconfig for our formatting tool to ignore some folders.
• Renormalizes all stored files, we had tons of files actually stored as CRLF inside the repository.
• Formats all stored files, a few of them had inconsistent tabulation.

Result of this change:

• When running git add --renormalize . no files are changed (tested on Windows and Mac).
• When running perl %pathtotheinstall%/format.pl all no files are changed (tested on Windows and Mac).

[Rene-Damm]

I should have ideally merged this one first. Anyway, I'll go sync it to latest develop and merge.